Parallelogram
#10
(56)(40)
2240 feet2
#9
(8.5)(8.5)/2
36.125 cm2
#4
(8+15)/2 x 15
172.5 ft2
#11
3.14(30)2
2826 cm2
#5
3.14(12)
37.7 in
#2
(30)(35)
1050 in2
#14
(30 x 26)/2
390 in2
#3
(182+267)/2 x 254
57,023 mi2
#18
3.14(7)2
153.9 in2
#6
3.14(1/2)
1.6 miles
#17
(340)(250)
85,000 ft2
#16
(3.5 x 4)/2
7 yd2
#15
(5+30)/2 x 100
1750 in2
#8
3.14(8)2
201.1 in2
#13
(2)3.14(15)
94.2 in